CN206496731U - A kind of high accuracy can load and unload three-dimensional laser scanner target group - Google Patents
A kind of high accuracy can load and unload three-dimensional laser scanner target group Download PDFInfo
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- CN206496731U CN206496731U CN201720141961.3U CN201720141961U CN206496731U CN 206496731 U CN206496731 U CN 206496731U CN 201720141961 U CN201720141961 U CN 201720141961U CN 206496731 U CN206496731 U CN 206496731U
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Abstract
The utility model, which is related to a kind of high accuracy, can load and unload three-dimensional laser scanner target group, it is characterized in that：At least include chamfering triangular shape target group unit and half frame connecting bracket, chamfering triangular shape target group unit seat is in half frame connecting bracket；Post the circular independent target of reflective membrane, reflective crosshair and cylinder lever connecting rod in its surface of chamfering triangular shape target group unit；Circular independent target that the chamfering triangular shape target group unit posts reflective membrane by 3 surfaces is mutually circumscribed to be solidly combined, and the circle center line connecting of 3 independent targets constitutes equilateral triangle, and the geometric center of equilateral triangle inlays reflective crosshair；The circular circumscribed edge of the circular independent target of reflective membrane is posted on the surface and the cylinder lever connecting rod top end is connected.The utility model realizes more precise positioning, orientation, improves scan data precision and quality.
Description
Technical field
The utility model, which is related to a kind of high accuracy, can load and unload three-dimensional laser scanner target group, belong to 3 D laser scanning survey
Amount positioning, orienting device.
Background technology
Three Dimensional Ground laser scanner technique is a kind of contactless active measurement technology, can large area, high-density acquisition mesh
Standard type three-dimensional space data.Scanner is the origin position using its random setting station position as reference origin internally self-built coordinate system
The geometric center of range laser transmitting inside scanner, Z axis is the vertical pivot of instrument, and horizontal direction is X, and Y-axis, Y-axis is often to sweep
Retouch acquiescence Initial Azimuth, X-axis and Y, Z axis be vertical and Special composition coordinate system.Each station scanning element cloud data coordinates are unrelated, because
This need scanning target as cooperative target, and by Coordinate Conversion by scan data coordinate unification into earth coordinates.So
And, work implement in, the placement of target need to be set according to surrounding terrain landform shape close proximity to ground, exist placement built on the sand, incline
The problem of tiltedly placing, scanner transmitting laser vertical incidence target can not be ensured, so that laser reflectivity is low, target data acquisition
The problems such as low precision.If especially reusing this target after scanner moves station, block because of physical features, incident angle is excessive and target
It the factor influence such as can not rotate up and down, cause the failure of target data acquisition or fitting centre bit to deviate even mistake so that
Scanning achievement can not carry out Coordinate Conversion or conversion accuracy it is low so that error.
Utility model content
The purpose of this utility model is to solve Three Dimensional Ground laser scanner in target data acquisition, and target is
It fixed in position and can up and down rotate, the incident target of scanner transmitting laser vertical is ensure that again, reaches that same target is more
Angle is utilized, and is realized more precise positioning, orientation, is improved scan data precision and quality.
To achieve these goals, the technical solution of the utility model is as follows：A kind of high accuracy can load and unload three-dimensional laser and sweep
Instrument target group is retouched, it is characterized in that：At least include chamfering triangular shape target group unit and half frame connecting bracket, chamfering triangular shape mark
Target group unit seat is in half frame connecting bracket；Post the circular independent target of reflective membrane in its surface of chamfering triangular shape target group unit
Mark, reflective crosshair and cylinder lever connecting rod；The circle that the chamfering triangular shape target group unit posts reflective membrane by 3 surfaces is independent
Target is mutually circumscribed to be solidly combined, and the circle center line connecting of 3 independent targets constitutes equilateral triangle, the geometric center of equilateral triangle
Inlay reflective crosshair；Post the circular circumscribed edge and the cylinder lever connecting rod top of the circular independent target of reflective membrane in the surface
Portion end is connected.
The reflective crosshair is placed in the geometric center of chamfering triangular shape target group unit.
The circular independent target, described reflective crosshair and described cylinder lever connecting rod that reflective membrane is posted on described surface are consolidated
Same level is placed in after even.
Half described frame connecting bracket includes half framework, rotary shaft, 360 ° of rotational circle post holes of fixed in position and finger pressing type
Screw rod, the inner side of half framework top two is connected with described rotary shaft one end respectively, described 360 ° of rotational circle post holes of fixed in position
Half base of frame is embedded in, the finger pressing type screw rod passes through half framework bottom side perforation and the fixed in position
360 ° of rotational circle post holes phase buckles.
The surface posts the circular independent target of reflective membrane by 4 30 ° of sectors and 4 60 ° of sectors are spaced constitutes
Circle connection.
The utility model has following advantage compared with existing target：
1. the utility model compact conformation, novel in design reasonable, light compact, it is easy to carry.
2. the utility model is easy to field process fixed in position to use so that target by setting three target assembly apparatus
Plumbness is constantly in, and can adjust laser incident angle and turn at any time, the reflectivity of laser is substantially increased, carries
High target data acquisition precision.
3. avoiding placement shakiness and the limitation to terrain dependence by force habitually in the past, it is very easy to operating personnel's
Work.
4. the utility model is combined by three independent targets, its ingenious composition equilateral triangle in three centers of circle, triangle
Center is overlapped with chamfering triangular shape target group unit crosshair, and the Target Center fitting data for realizing acquisition is mutually checked, and is had
Deletion fitting rough error is imitated, the reliable choice of fitting precision is added, target scanning Result Precision realization is effectively increased and sweeps
Described point cloud optimal registration.
In summary, triangle most firm principle has been used in the utility model compact conformation, design, target is solved
The dependence physical features of placement, built on the sand and move the problems such as recycling effect is poor behind station, it is to avoid physical features is blocked, angle is excessive and mark
The defect such as target is in stays, it is ensured that the incident target of scanner transmitting laser vertical, improves target data acquisition precision and matter
Amount, it has the advantages that practical, easy realization, is convenient for carrying, with stronger use value and dissemination.
Below by accompanying drawing and implementation, the technical solution of the utility model is described in further detail.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is triangular shape target group cellular construction schematic diagram；
Fig. 3 is 4 30 ° of sector structure schematic diagrames；
Fig. 4 is 4 60 ° of sector structure schematic diagrames.
Description of reference numerals：
1st, chamfering triangular shape target group unit, 1-1, surface post the circular independent target of reflective membrane, 1-2, reflective cross,
1-3, cylinder lever connecting rod, 1-1-1,30 ° of sectors, 1-1-2,60 ° of sectors, 2, half frame connecting bracket, 2-1, half framework, 2-2, rotation
Axle, 2-3,360 ° of rotational circle post holes of fixed in position, 2-4, finger pressing type screw rod.
Embodiment
In order to help to understand that the purpose of the present utility model, technical scheme and advantage are more thorough, below in conjunction with accompanying drawing and
Embodiment, is described in detail.
As shown in Figure 1 and Figure 2, a kind of high accuracy can load and unload three-dimensional laser scanner target group, at least including chamfering triangular shape
Target group unit 1 and half frame connecting bracket 2, chamfering triangular shape target group unit 1 is in half frame connecting bracket 2；Chamfering
Post the circular independent target 1-1 of reflective membrane, reflective crosshair 1-2 and cylinder lever connecting rod 1-3 in its surface of triangular shape target group unit 1；
The mutually circumscribed combinations of circular independent target 1-1 that the chamfering triangular shape target group unit 1 posts reflective membrane by 3 surfaces are solid
Even, the circle center line connecting of 3 independent targets constitutes equilateral triangle, and the geometric center of equilateral triangle inlays reflective crosshair 1-2；
The circular independent target 1-1 of reflective membrane circular circumscribed edge is posted on the surface and the cylinder lever connecting rod 1-3 top ends are connected.
The reflective crosshair 1-2 is placed in the geometric center of chamfering triangular shape target group unit 1.
Post the circular independent target 1-1, described reflective crosshair 1-2 and described connection of reflective membrane in described surface
Pull bar 1-3 is placed in same level after being connected.
Half described frame connecting bracket 2 includes half framework 2-1, rotary shaft 2-2,360 ° of rotational circle post holes 2- of fixed in position
3 and finger pressing type screw rod 2-4, the inner side of half framework 2-1 tops two is connected with described rotary shaft 2-2 one end respectively, the fixation
360 ° of rotational circle post holes of placement are embedded in the half framework 2-1 bottoms, and the finger pressing type screw rod 2-4 passes through the half framework 2-1
The side perforation of bottom one and described 360 ° of rotational circle post holes phase buckles of fixed in position.
As shown in Figure 3 and Figure 4, the circular independent target 1-1 of reflective membrane is posted by 4 30 ° of sector 1-1-1 in the surface
（Fig. 3）With 4 60 ° of sector 1-1-2（Fig. 4）The spaced circular connection of composition.
If the circular independent target 1-1 centers of reflective membrane are posted on the middle and upper part surface of chamfering triangular shape target group unit 1
Coordinate is（XU、YU、HU）, the independent target 1-1 centre coordinates in left side be（XL、YL、HL）, the independent target 1-1 centre coordinates in right side be
（XR、YR、HR）, according to the available reflective crosshair 1-2 centre coordinates of triangular relationship（X、Y、H）Calculation formula：Similarly, can be with
Reflective crosshair 1-2 centre coordinate is calculated with other any two points, can mutually be checked with the actual target achievement obtained,
Rejecting is gone on business, and mistake is found in time, reaches the purpose for improving cloud data conversion accuracy.
In the present embodiment, transformed by calibrating existing target maintenance, positioning the defect such as recycling and the incident angle of cut so that
The placement of target maintenance is convenient, move position of standing firm recycles excellent performance, laser light incident orthogonal, facilitates field process, realizes compact
It is portable, greatly improve operating efficiency and scanning element cloud data conversion precision.
As it will be easily appreciated by one skilled in the art that preferred embodiment of the present utility model is the foregoing is only, not to this
Utility model is imposed any restrictions, every any simple modification made according to the utility model technical spirit to above example,
Change and equivalent structure transformation, still fall within the protection domain of technical solutions of the utility model.
Claims (5)
1. a kind of high accuracy can load and unload three-dimensional laser scanner target group, it is characterized in that：At least include chamfering triangular shape target group
Unit（1）With half frame connecting bracket（2）, chamfering triangular shape target group unit（1）Seat is in half frame connecting bracket（2）It is interior；
Angle triangular shape target group unit（1）Post the circular independent target of reflective membrane in its surface（1-1）, reflective crosshair（1-2）And connection
Pull bar（1-3）；The chamfering triangular shape target group unit（1）The circular independent target of reflective membrane is posted by 3 surfaces（1-1）Phase
Mutually circumscribed to be solidly combined, the circle center line connecting of 3 independent targets constitutes equilateral triangle, and the geometric center of equilateral triangle is inlayed instead
Light crosshair（1-2）；Post the circular independent target of reflective membrane in the surface（1-1）Circular circumscribed edge with it is described connection draw
Bar（1-3）Top end is connected.
2. a kind of high accuracy according to claim 1 can load and unload three-dimensional laser scanner target group, it is characterized in that：It is described anti-
Light crosshair（1-2）It is placed in chamfering triangular shape target group unit（1）Geometric center.
3. a kind of high accuracy according to claim 1 can load and unload three-dimensional laser scanner target group, it is characterized in that：Described
Post the circular independent target of reflective membrane in surface（1-1）, described reflective crosshair（1-2）With described cylinder lever connecting rod（1-3）
Same level is placed in after being connected.
4. a kind of high accuracy according to claim 1 can load and unload three-dimensional laser scanner target group, it is characterized in that：Described
Half frame connecting bracket（2）Including half framework（2-1）, rotary shaft（2-2）, 360 ° of rotational circle post holes of fixed in position（2-3）And finger
Pressure type screw rod（2-4）, half framework（2-1）The inner side of top two respectively with the rotary shaft（2-2）One end is connected, the fixation
360 ° of rotational circle post holes of placement are embedded in half framework（2-1）Bottom, the finger pressing type screw rod（2-4）Pass through half framework
（2-1）The side perforation of bottom one and described 360 ° of rotational circle post holes phase buckles of fixed in position.
5. a kind of high accuracy according to claim 1 can load and unload three-dimensional laser scanner target group, it is characterized in that：The table
Post the circular independent target of reflective membrane in face（1-1）By 4 30 ° of sectors（1-1-1）With 4 60 ° of sectors（1-1-2）It is spaced
The circular connection of composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720141961.3U CN206496731U (en) | 2017-02-17 | 2017-02-17 | A kind of high accuracy can load and unload three-dimensional laser scanner target group |
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| CN201720141961.3U CN206496731U (en) | 2017-02-17 | 2017-02-17 | A kind of high accuracy can load and unload three-dimensional laser scanner target group |
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| CN206496731U true CN206496731U (en) | 2017-09-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109341525A (en) * | 2018-10-17 | 2019-02-15 | 天津大学 | A kind of " V " type target and coordinate measuring method based on two dimensional laser scanning instrument |
-
2017
- 2017-02-17 CN CN201720141961.3U patent/CN206496731U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109341525A (en) * | 2018-10-17 | 2019-02-15 | 天津大学 | A kind of " V " type target and coordinate measuring method based on two dimensional laser scanning instrument |
| CN109341525B (en) * | 2018-10-17 | 2020-09-01 | 天津大学 | V-shaped target based on two-dimensional laser scanner and coordinate measuring method |
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